drill a hole in the glass that covers the monitor, and "extend" the power button with a stick or pole of something. That way you have a way of pressing the button without opening the glass
Alternatively, use Steve Gibsons "Wizmo" utility.
http://grc.com/wizmo/wizmo.htm
You can use it to turnoff all monitors to standby mode, which will help with the power consumption problem you were talking about.
Quote:
monoff — turns off all monitors
Any system monitors that support Windows advanced power management (APM) will be immediately powered down until they are awakened by the keyboard or mouse movement. Since this is a Wizmo hosted mode, the mouse sensitivity "shake=" command can precede the "monoff" command to set or disable subsequent mouse movement unblanking. Other Wizmo commands to change system settings may be placed before and after the "monoff" command to alter the system's operation while the monitors are powered down.
Example: wizmo monoff
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Wizmo can also do a ton of other things quickly and easily. The documentation is pretty good and gives a few examples. You should be able to figure it out after a few minutes.